Our first Year 10 Chemical Reactions
1. Magnesium reacting with oxygen:
Method: We held a strip of magnesium metal in the hottest part of a bunsen burner flame till it caught fire. We didn't look directly at the reaction because (safety reason)
Observations:
1. The magnesium metal was a shiny, grey and malleable.
2. The magnesium burned with a bright white light.
3. After it burned it turned into a greyish white ash.
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| Magnesium metals before burning |
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| During burning |
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| After it burned |
The word equation is: Magnesium + Oxygen -----> Magnesium Oxide
The balanced chemical equation is: 2 Mg + O2 ----->2 MgO
2. Iron filings reacting with sulphur:
Method: We mixed equal amounts of iron filings and sulphur then used a magnet wrapped in paper to separate them. We mixed them again and added the mixture to a test tube and heated strongly.
Observations:
1. The iron filings were dark gray almost balck.
2. The sulphur was light yellow.
3, When we heated the tube it burned with a bright red at the bottom.
The word equation for the reaction is:
The balanced chemical equation is:
